[net-next-2.6.git] / sound / synth / emux / emux_hwdep.c

/*
 *  Interface for hwdep device
 *
 *  Copyright (C) 2004 Takashi Iwai <tiwai@suse.de>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <sound/core.h>
#include <sound/hwdep.h>
#include <asm/uaccess.h>
#include "emux_voice.h"


#define TMP_CLIENT_ID	0x1001

/*
 * load patch
 */
static int
snd_emux_hwdep_load_patch(struct snd_emux *emu, void __user *arg)
{
	int err;
	struct soundfont_patch_info patch;

	if (copy_from_user(&patch, arg, sizeof(patch)))
		return -EFAULT;

	if (patch.type >= SNDRV_SFNT_LOAD_INFO &&
	    patch.type <= SNDRV_SFNT_PROBE_DATA) {
		err = snd_soundfont_load(emu->sflist, arg, patch.len + sizeof(patch), TMP_CLIENT_ID);
		if (err < 0)
			return err;
	} else {
		if (emu->ops.load_fx)
			return emu->ops.load_fx(emu, patch.type, patch.optarg, arg, patch.len + sizeof(patch));
		else
			return -EINVAL;
	}
	return 0;
}

/*
 * set misc mode
 */
static int
snd_emux_hwdep_misc_mode(struct snd_emux *emu, void __user *arg)
{
	struct snd_emux_misc_mode info;
	int i;

	if (copy_from_user(&info, arg, sizeof(info)))
		return -EFAULT;
	if (info.mode < 0 || info.mode >= EMUX_MD_END)
		return -EINVAL;

	if (info.port < 0) {
		for (i = 0; i < emu->num_ports; i++)
			emu->portptrs[i]->ctrls[info.mode] = info.value;
	} else {
		if (info.port < emu->num_ports)
			emu->portptrs[info.port]->ctrls[info.mode] = info.value;
	}
	return 0;
}


/*
 * ioctl
 */
static int
snd_emux_hwdep_ioctl(struct snd_hwdep * hw, struct file *file,
		     unsigned int cmd, unsigned long arg)
{
	struct snd_emux *emu = hw->private_data;

	switch (cmd) {
	case SNDRV_EMUX_IOCTL_VERSION:
		return put_user(SNDRV_EMUX_VERSION, (unsigned int __user *)arg);
	case SNDRV_EMUX_IOCTL_LOAD_PATCH:
		return snd_emux_hwdep_load_patch(emu, (void __user *)arg);
	case SNDRV_EMUX_IOCTL_RESET_SAMPLES:
		snd_soundfont_remove_samples(emu->sflist);
		break;
	case SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES:
		snd_soundfont_remove_unlocked(emu->sflist);
		break;
	case SNDRV_EMUX_IOCTL_MEM_AVAIL:
		if (emu->memhdr) {
			int size = snd_util_mem_avail(emu->memhdr);
			return put_user(size, (unsigned int __user *)arg);
		}
		break;
	case SNDRV_EMUX_IOCTL_MISC_MODE:
		return snd_emux_hwdep_misc_mode(emu, (void __user *)arg);
	}

	return 0;
}


/*
 * register hwdep device
 */

int
snd_emux_init_hwdep(struct snd_emux *emu)
{
	struct snd_hwdep *hw;
	int err;

	if ((err = snd_hwdep_new(emu->card, SNDRV_EMUX_HWDEP_NAME, emu->hwdep_idx, &hw)) < 0)
		return err;
	emu->hwdep = hw;
	strcpy(hw->name, SNDRV_EMUX_HWDEP_NAME);
	hw->iface = SNDRV_HWDEP_IFACE_EMUX_WAVETABLE;
	hw->ops.ioctl = snd_emux_hwdep_ioctl;
	/* The ioctl parameter types are compatible between 32- and
	 * 64-bit architectures, so use the same function. */
	hw->ops.ioctl_compat = snd_emux_hwdep_ioctl;
	hw->exclusive = 1;
	hw->private_data = emu;
	if ((err = snd_card_register(emu->card)) < 0)
		return err;

	return 0;
}


/*
 * unregister
 */
void
snd_emux_delete_hwdep(struct snd_emux *emu)
{
	if (emu->hwdep) {
		snd_device_free(emu->card, emu->hwdep);
		emu->hwdep = NULL;
	}
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Interface for hwdep device
	3	*
	4	* Copyright (C) 2004 Takashi Iwai <tiwai@suse.de>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*
	20	*/
	21
1da177e4 LT	22	#include <sound/core.h>
	23	#include <sound/hwdep.h>
	24	#include <asm/uaccess.h>
	25	#include "emux_voice.h"
	26
1da177e4 LT	27
	28	#define TMP_CLIENT_ID 0x1001
	29
	30	/*
	31	* load patch
	32	*/
	33	static int
03da312a	34	snd_emux_hwdep_load_patch(struct snd_emux emu, void __user arg)
1da177e4 LT	35	{
1da177e4 LT	36	int err;
03da312a	37	struct soundfont_patch_info patch;
1da177e4 LT	38
	39	if (copy_from_user(&patch, arg, sizeof(patch)))
	40	return -EFAULT;
	41
	42	if (patch.type >= SNDRV_SFNT_LOAD_INFO &&
	43	patch.type <= SNDRV_SFNT_PROBE_DATA) {
	44	err = snd_soundfont_load(emu->sflist, arg, patch.len + sizeof(patch), TMP_CLIENT_ID);
	45	if (err < 0)
	46	return err;
	47	} else {
	48	if (emu->ops.load_fx)
	49	return emu->ops.load_fx(emu, patch.type, patch.optarg, arg, patch.len + sizeof(patch));
	50	else
	51	return -EINVAL;
	52	}
	53	return 0;
	54	}
	55
	56	/*
	57	* set misc mode
	58	*/
	59	static int
03da312a	60	snd_emux_hwdep_misc_mode(struct snd_emux emu, void __user arg)
1da177e4	61	{
03da312a	62	struct snd_emux_misc_mode info;
1da177e4 LT	63	int i;
	64
	65	if (copy_from_user(&info, arg, sizeof(info)))
	66	return -EFAULT;
	67	if (info.mode < 0 \|\| info.mode >= EMUX_MD_END)
	68	return -EINVAL;
	69
	70	if (info.port < 0) {
	71	for (i = 0; i < emu->num_ports; i++)
	72	emu->portptrs[i]->ctrls[info.mode] = info.value;
	73	} else {
	74	if (info.port < emu->num_ports)
	75	emu->portptrs[info.port]->ctrls[info.mode] = info.value;
	76	}
	77	return 0;
	78	}
	79
	80
	81	/*
	82	* ioctl
	83	*/
	84	static int
03da312a TI	85	snd_emux_hwdep_ioctl(struct snd_hwdep * hw, struct file *file,
03da312a TI	86	unsigned int cmd, unsigned long arg)
1da177e4	87	{
03da312a	88	struct snd_emux *emu = hw->private_data;
1da177e4 LT	89
	90	switch (cmd) {
	91	case SNDRV_EMUX_IOCTL_VERSION:
	92	return put_user(SNDRV_EMUX_VERSION, (unsigned int __user *)arg);
	93	case SNDRV_EMUX_IOCTL_LOAD_PATCH:
	94	return snd_emux_hwdep_load_patch(emu, (void __user *)arg);
	95	case SNDRV_EMUX_IOCTL_RESET_SAMPLES:
	96	snd_soundfont_remove_samples(emu->sflist);
	97	break;
	98	case SNDRV_EMUX_IOCTL_REMOVE_LAST_SAMPLES:
	99	snd_soundfont_remove_unlocked(emu->sflist);
	100	break;
	101	case SNDRV_EMUX_IOCTL_MEM_AVAIL:
	102	if (emu->memhdr) {
	103	int size = snd_util_mem_avail(emu->memhdr);
	104	return put_user(size, (unsigned int __user *)arg);
	105	}
	106	break;
	107	case SNDRV_EMUX_IOCTL_MISC_MODE:
	108	return snd_emux_hwdep_misc_mode(emu, (void __user *)arg);
	109	}
	110
	111	return 0;
	112	}
	113
	114
	115	/*
	116	* register hwdep device
	117	*/
	118
	119	int
03da312a	120	snd_emux_init_hwdep(struct snd_emux *emu)
1da177e4	121	{
03da312a	122	struct snd_hwdep *hw;
1da177e4 LT	123	int err;
	124
	125	if ((err = snd_hwdep_new(emu->card, SNDRV_EMUX_HWDEP_NAME, emu->hwdep_idx, &hw)) < 0)
	126	return err;
	127	emu->hwdep = hw;
	128	strcpy(hw->name, SNDRV_EMUX_HWDEP_NAME);
	129	hw->iface = SNDRV_HWDEP_IFACE_EMUX_WAVETABLE;
1da177e4	130	hw->ops.ioctl = snd_emux_hwdep_ioctl;
a254dba3 BH	131	/* The ioctl parameter types are compatible between 32- and
	132	* 64-bit architectures, so use the same function. */
	133	hw->ops.ioctl_compat = snd_emux_hwdep_ioctl;
1da177e4 LT	134	hw->exclusive = 1;
	135	hw->private_data = emu;
	136	if ((err = snd_card_register(emu->card)) < 0)
	137	return err;
	138
	139	return 0;
	140	}
	141
	142
	143	/*
	144	* unregister
	145	*/
	146	void
03da312a	147	snd_emux_delete_hwdep(struct snd_emux *emu)
1da177e4 LT	148	{
	149	if (emu->hwdep) {
	150	snd_device_free(emu->card, emu->hwdep);
	151	emu->hwdep = NULL;
	152	}
	153	}